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Do (present tense) and Did(past tense)

as Helping Verb to Make Negative Sentences.

Main verb:

simple form past tense form
work worked
live lived
move moved
arrive arrived
need needed
want wanted
like liked
talk talked
cook cooked
walk walked
eat ate
have had
see saw
read read
cost cost
give give
get got
go went
know knew
do did
buy bought

Present Tense Negative: do + not + main verb

singular Plural
I do not ___
I don’t ___
We do not ___
We don’t ___
You do not ___
You don’t ___
You do not ___
You don’t ___
He does not ___
He doesn’t ___
 
She Does not ___
She doesn’t ___
They do not ___
They don’t ___
It Does not ___
It doesn’t ___
 

Watch this video for detail : https://www.youtube-nocookie.com/embed/-dguy9IJMuQ

Past Tense Negative: did + not + main verb

singular Plural
I did not ___
I didn’t ___
We did not ___
We didn’t ___
You did not ___
You didn’t ___
You did not ___
You didn’t ___
He did not ___
He didn’t ___
 
She did not ___
She didn’t ___
They did not ___
They didn’t ___
It did not ___
It didn’t ___
 

Watch this video for detail : http://www.youtube.com/embed/a7_WGF_L5qs?rel=0

The verb “do” is a helping verb. We add it to the simple form of a verb to make questions and negatives in the present tense and the past tense.

Examples:

  • I don't work on the weekend. (present tense negative).
  • I didn't work last weekend. (past tense negative)
  • He doesn't like to go to the store. (present tense negative)
  • He didn't like to go to the store when he was younger. (past tense negative).
  • They don't have any money. (present tense negative)
  • They didn't have any money last week. (past tense negative.)

Note: “Do” is also used as a main verb for activities, such as housework, cleaning, studying, research, business, and shopping.

Examples:

  • I don't do the dishes every night.
  • I didn't do the dishes last night.
  • She doesn't do her grocery shopping at Cub.
  • She didn't do her grocery shopping yesterday.
  • They do not do their homework at the library.
  • They didn't do their homework last night.
  • Their company doesn't do business in Minnesota.
  • They never did business here.

The past tense form of “do” is “did.” Did + not = didn’t

Examples:

  • I didn’t go to work yesterday.
  • She didn’t take the bus to work.

Separating the contraction creates emphasis.

Examples:

  • I did not want to do the dishes last night.
  • I do not want to do them now!
  • He does not have his license!
  • He never did get it!
  • Please, do not put that hot pan on the counter!

Never put “did” + ___ing together.

  • He did going to work last night. (incorrect)
  • He went to work last night. ( correct )

Avoid bad American grammar!

  • She don't go to work on Sunday. (She doesn’t go to work on Sunday.)
  • It don't matter to me. (It doesn’t matter to me.)
  • He don't know. (He doesn’t know.)

Practice one : Using the helping verb “do” in the present tense

Part A.

Directions: Complete each question with the correct form of the auxiliary verb and the main verb in the present tense. (10 points)

  • ___ she ___ her job? (like) (Does … like)
  • ___ they ___ anything for breakfast? (want) (Do … want)
  • Where ___ you ___ to school? (go) (do … go)
  • What ___ she ___ for a living? (do) (does … do )
  • ___ I ___ a heavy coat today? (need) (Do … need)
  • When ___ they ___ their homework? (do) (do … do)
  • ___ it ___ anything to ride the bus? (cost) (Does … cost)
  • What time ___ you ___ dinner? (eat) (do … eat)
  • ___ the students ___ the lesson? (understand) (Do … understand)
  • How ___ this ___ ? (work) (does … work)

Part B.

Directions: Use only the verb “do” for the auxiliary ver (helping verb) and the main verb. (10 points)

  • ___ she ___ the shopping on the weekend? (question) (Does … do )
  • They ___ ___ very much work. (negative) (don’t do)
  • What ___ you ___ ? (question) (do … do)
  • Who ___ the dishes at your house? (question) (does)
  • She ___ ___ any cleaning during the week. (negative) (doesn’t do)
  • When ___ we ___ our taxes? (question) (do do)
  • ___ his accountant ___ his taxes? (question) (Does … do)
  • I ___ ___ drugs. (negative) (don’t do )
  • She ___ ___ drugs either. (negative) (doesn’t do )
  • Why ___ he ___ that for you? (question - negative) (doesn’t … do)

Part C.

Conjugate the verb “do” in the present tense (5 points)

Singular Plural
I do we do
You do You do
She does  
He does They do
It Does  

Conjugate the verb “go” in the present tense negative (5 points)

Singular Plural
I don’t go We don’t go
You don’t go You don’t go
She doesn’t go  
He doesn’t go They don’t go
It doesn’t go  

Practice two : Using the helping verb “do” in the past tense and past tense negative

Part A.

Directions: Complete each question with the correct form of the auxiliary verb and the main verb in the past tense. (10 points)

  • ___ they ___ their work yet? (finish) (Did … finish)
  • ___ you ___ anything for lunch? (eat) (Did … eat)
  • When ___ you ___ this morning? (wake up) (did … wake up)
  • What ___ the students ___ in class yesterday? (do) (did … do)
  • Where ___ I ___ my keys? (put) (did .. put)
  • ___ the teacher ___ you a quiz today? (give) (Did … give)
  • How ___ it ___ to lose all that money? (feel) (did … feel)
  • ___ Maria ___ to work last week? (come) (Did … come)
  • What time ___ the movie ___ ? (start) (did … start)
  • Is this what you ___ in class this morning? (do) (did)

Part B.

Directions: Make each sentence negative in the past tense. (10 points)

  • She ___ ___ the laundry last weekend. (do) (didn’t do)
  • I ___ ___ that book very much. (like) (didn’t like)
  • My car ___ ___ this morning. (start) (didn’t start)
  • John ___ ___ the answer to the question. (know) (didn’t know)
  • The party ___ ___ past midnight. (last) (didn’t last)
  • Her boss ___ ___ her enough time. (give) (didn’t give)
  • We found out that she ___ ___ her taxes. (pay) (didn’t pay)
  • Jose and I ___ ___ all that food on the table. (see) (didn’t see)
  • His children ___ ___ their homework. (do) (didn’t do)
  • They never ___ how to ride a bike. (learn) (learned)

Part C.

Conjugate the verb “do” in the past tense negative. (5 pts.)

Singular Plural
I did We did
You did You did
She did  
He did They did
It did  

Conjugate the verb “study” in the past tense negative. (5 points)

Singular Plural
I didn’t study We didn’t study
You didn’t study You didn’t study
She didn’t study  
He didn’t study They didn’t study
It didn’t study  

Reading Time : 阅读时间

These are Lisa’s children. She has two daughters. Katie is eight and Cynthia is eleven. Both of Lisa’s children like to play in the snow, so Lisa took her children sledding today.

Katie is sitting on a sled. She’s ready to go down the hill. There’s some room behind her on the sled, so her sister, Cynthia, will probably go down the hill with her.

Later, they’ll all go home and drink hot cocoa. They like to drink hot cocoa after being outside in the cold for a long time.

How much do you remember from the reading ? Fill in the blanks.

  • 1A: How many daughters does Lisa have?
  • 1B: She ___ two daughters. (has)
  • 2A: What do her daughters like to do?
  • 2B: They like ___ ___ in the snow. (to play)
  • 3A: What is Katie sitting ___ ? (on)
  • 3B: She’s sitting on a sled.
  • 4A: Where will they all go later?
  • 4B: They’ll all go ___ . (home)